typos: fix a grabbag of typos all over the place

src/test/compile-fail/associated-types-invalid-trait-ref-issue-18865.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// Test that we report an error if the trait ref in an qualified type
+// Test that we report an error if the trait ref in a qualified type
 // uses invalid type arguments.
 
 trait Foo<T> {

src/test/compile-fail/const-len-underflow-separate-spans.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// Check that an constant-evaluation underflow highlights the correct
+// Check that a constant-evaluation underflow highlights the correct
 // spot (where the underflow occurred), while also providing the
 // overall context for what caused the evaluation.
 

src/test/compile-fail/const-len-underflow-subspans.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// Check that an constant-evaluation underflow highlights the correct
+// Check that a constant-evaluation underflow highlights the correct
 // spot (where the underflow occurred).
 
 const ONE: usize = 1;

src/test/compile-fail/dropck_tarena_unsound_drop.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// Check that a arena (TypedArena) cannot carry elements whose drop
+// Check that an arena (TypedArena) cannot carry elements whose drop
 // methods might access borrowed data of lifetime that does not
 // strictly outlive the arena itself.
 //
@@ -30,7 +30,7 @@ struct CheckId<T:HasId> { v: T }
 // In the code below, the impl of HasId for `&'a usize` does not
 // actually access the borrowed data, but the point is that the
 // interface to CheckId does not (and cannot) know that, and therefore
-// when encountering the a value V of type CheckId<S>, we must
+// when encountering a value V of type CheckId<S>, we must
 // conservatively force the type S to strictly outlive V.
 impl<T:HasId> Drop for CheckId<T> {
     fn drop(&mut self) {

src/test/compile-fail/dropck_trait_cycle_checked.rs

@@ -9,7 +9,7 @@
 // except according to those terms.
 
 // Reject mixing cyclic structure and Drop when using trait
-// objects to hide the the cross-references.
+// objects to hide the cross-references.
 //
 // (Compare against compile-fail/dropck_vec_cycle_checked.rs)
 

src/test/compile-fail/issue-17904-2.rs

@@ -9,7 +9,7 @@
 // except according to those terms.
 
 // Test that we can parse a unit struct with a where clause, even if
-// it leads to a error later on since `T` is unused.
+// it leads to an error later on since `T` is unused.
 
 struct Foo<T> where T: Copy; //~ ERROR parameter `T` is never used
 

src/test/compile-fail/issue-1920-2.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Test that when a crate is linked under another name that that name is used in global paths
+//! Test that when a crate is linked under another name that name is used in global paths
 
 extern crate core as bar;
 

src/test/compile-fail/issue-6801.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// Creating a stack closure which references an box and then
+// Creating a stack closure which references a box and then
 // transferring ownership of the box before invoking the stack
 // closure results in a crash.
 

src/test/compile-fail/regions-outlives-projection-container-hrtb.rs

@@ -37,7 +37,7 @@ pub struct WithHrAssoc<T>
 }
 
 fn with_assoc<'a,'b>() {
-    // We get an error because beacuse 'b:'a does not hold:
+    // We get an error because 'b:'a does not hold:
 
     let _: &'a WithHrAssoc<TheType<'b>> = loop { };
     //~^ ERROR reference has a longer lifetime

src/test/compile-fail/unboxed-closures-recursive-fn-using-fn-mut.rs

@@ -12,7 +12,7 @@
 
 use std::marker::PhantomData;
 
-// A erroneous variant of `run-pass/unboxed_closures-infer-recursive-fn.rs`
+// An erroneous variant of `run-pass/unboxed_closures-infer-recursive-fn.rs`
 // where we attempt to perform mutation in the recursive function. This fails to compile
 // because it winds up requiring `FnMut` which enforces linearity.
 

src/test/compile-fail/variance-regions-direct.rs

@@ -48,7 +48,7 @@ struct Test5<'a, 'b:'a> { //~ ERROR regions=[[+, o];[];[]]
 
 // Invariance is a trap from which NO ONE CAN ESCAPE.
 // In other words, even though the `&'b isize` occurs in
-// a argument list (which is contravariant), that
+// an argument list (which is contravariant), that
 // argument list occurs in an invariant context.
 
 #[rustc_variance]

src/test/run-fail/issue-18576.rs

@@ -11,7 +11,7 @@
 // error-pattern:stop
 
 // #18576
-// Make sure that an calling extern function pointer in an unreachable
+// Make sure that calling an extern function pointer in an unreachable
 // context doesn't cause an LLVM assertion
 
 #[allow(unreachable_code)]

src/test/run-pass/dropck_tarena_sound_drop.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// Check that a arena (TypedArena) can carry elements whose drop
+// Check that an arena (TypedArena) can carry elements whose drop
 // methods might access borrowed data, as long as the borrowed data
 // has lifetime that strictly outlives the arena itself.
 //

src/test/run-pass/impl-inherent-non-conflict.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// Ensure that an user-defined type admits multiple inherent methods
+// Ensure that a user-defined type admits multiple inherent methods
 // with the same name, which can be called on values that have a
 // precise enough type to allow distinguishing between the methods.
 

src/test/run-pass/issue-24085.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// Regression test for #24085. Errors were occuring in region
+// Regression test for #24085. Errors were occurring in region
 // inference due to the requirement that `'a:b'`, which was getting
 // incorrectly translated in connection with the closure below.