use the correct span when dealing with inference variables

src/test/ui/const-generics/infer/cannot-infer-const-args.full.stderr

@@ -2,7 +2,7 @@ error[E0282]: type annotations needed
   --> $DIR/cannot-infer-const-args.rs:12:5
    |
 LL |     foo();
-   |     ^^^ cannot infer the value for const parameter `X` declared on the function `foo`
+   |     ^^^ cannot infer the value of const parameter `X` declared on the function `foo`
 
 error: aborting due to previous error
 

src/test/ui/const-generics/infer/cannot-infer-const-args.min.stderr

@@ -2,7 +2,7 @@ error[E0282]: type annotations needed
   --> $DIR/cannot-infer-const-args.rs:12:5
    |
 LL |     foo();
-   |     ^^^ cannot infer the value for const parameter `X` declared on the function `foo`
+   |     ^^^ cannot infer the value of const parameter `X` declared on the function `foo`
 
 error: aborting due to previous error
 

src/test/ui/const-generics/infer/issue-77092.rs

@@ -0,0 +1,16 @@
+#![feature(min_const_generics)]
+
+use std::convert::TryInto;
+
+fn take_array_from_mut<T, const N: usize>(data: &mut [T], start: usize) -> &mut [T; N] {
+    (&mut data[start .. start + N]).try_into().unwrap()
+}
+
+fn main() {
+    let mut arr = [0, 1, 2, 3, 4, 5, 6, 7, 8];
+
+    for i in 1 .. 4 {
+        println!("{:?}", take_array_from_mut(&mut arr, i));
+        //~^ ERROR type annotations needed
+    }
+}

src/test/ui/const-generics/infer/issue-77092.stderr

@@ -0,0 +1,9 @@
+error[E0282]: type annotations needed
+  --> $DIR/issue-77092.rs:13:26
+   |
+LL |         println!("{:?}", take_array_from_mut(&mut arr, i));
+   |                          ^^^^^^^^^^^^^^^^^^^ cannot infer the value of the constant `{_: usize}`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0282`.

src/test/ui/const-generics/infer/method-chain.full.stderr

@@ -2,7 +2,7 @@ error[E0282]: type annotations needed
   --> $DIR/method-chain.rs:21:33
    |
 LL |     Foo.bar().bar().bar().bar().baz();
-   |                                 ^^^ cannot infer the value for const parameter `N` declared on the associated function `baz`
+   |                                 ^^^ cannot infer the value of const parameter `N` declared on the associated function `baz`
 
 error: aborting due to previous error
 

src/test/ui/const-generics/infer/method-chain.min.stderr

@@ -2,7 +2,7 @@ error[E0282]: type annotations needed
   --> $DIR/method-chain.rs:21:33
    |
 LL |     Foo.bar().bar().bar().bar().baz();
-   |                                 ^^^ cannot infer the value for const parameter `N` declared on the associated function `baz`
+   |                                 ^^^ cannot infer the value of const parameter `N` declared on the associated function `baz`
 
 error: aborting due to previous error
 

src/test/ui/const-generics/infer/uninferred-consts.full.stderr

@@ -2,7 +2,7 @@ error[E0282]: type annotations needed
   --> $DIR/uninferred-consts.rs:14:9
    |
 LL |     Foo.foo();
-   |         ^^^ cannot infer the value for const parameter `N` declared on the associated function `foo`
+   |         ^^^ cannot infer the value of const parameter `N` declared on the associated function `foo`
 
 error: aborting due to previous error
 

src/test/ui/const-generics/infer/uninferred-consts.min.stderr

@@ -2,7 +2,7 @@ error[E0282]: type annotations needed
   --> $DIR/uninferred-consts.rs:14:9
    |
 LL |     Foo.foo();
-   |         ^^^ cannot infer the value for const parameter `N` declared on the associated function `foo`
+   |         ^^^ cannot infer the value of const parameter `N` declared on the associated function `foo`
 
 error: aborting due to previous error