Fix tests.

Avoid invoking queries inside `check_paths`, since we are holding a lock
to the reconstructed graph.

src/test/ui/async-await/issues/issue-64964.rs

@@ -1,5 +1,5 @@
 // check-pass
-// compile-flags: -Z query-dep-graph
+// compile-flags: -Z query-dep-graph -C incremental=tmp/issue-64964
 // edition:2018
 
 // Regression test for ICE related to `await`ing in a method + incr. comp. (#64964)

src/test/ui/dep-graph/dep-graph-assoc-type-codegen.rs

@@ -1,7 +1,7 @@
 // Test that when a trait impl changes, fns whose body uses that trait
 // must also be recompiled.
 
-// compile-flags: -Z query-dep-graph
+// compile-flags: -Z query-dep-graph -C incremental=tmp/dep-graph-assoc-type-codegen
 
 #![feature(rustc_attrs)]
 #![allow(warnings)]

src/test/ui/dep-graph/dep-graph-caller-callee.rs

@@ -1,7 +1,7 @@
 // Test that immediate callers have to change when callee changes, but
 // not callers' callers.
 
-// compile-flags: -Z query-dep-graph
+// compile-flags: -Z query-dep-graph -C incremental=tmp/dep-graph-caller-callee
 
 #![feature(rustc_attrs)]
 #![allow(dead_code)]

src/test/ui/dep-graph/dep-graph-struct-signature.rs

@@ -1,7 +1,7 @@
 // Test cases where a changing struct appears in the signature of fns
 // and methods.
 
-// compile-flags: -Z query-dep-graph
+// compile-flags: -Z query-dep-graph -C incremental=tmp/dep-graph-struct-signature
 
 #![feature(rustc_attrs)]
 #![allow(dead_code)]

src/test/ui/dep-graph/dep-graph-trait-impl-two-traits-same-method.rs

@@ -1,7 +1,7 @@
 // Test that adding an impl to a trait `Foo` DOES affect functions
 // that only use `Bar` if they have methods in common.
 
-// compile-flags: -Z query-dep-graph
+// compile-flags: -Z query-dep-graph -C incremental=tmp/dep-graph-trait-impl-two-traits-same-method
 
 #![feature(rustc_attrs)]
 #![allow(dead_code)]

src/test/ui/dep-graph/dep-graph-trait-impl-two-traits.rs

@@ -1,7 +1,7 @@
 // Test that adding an impl to a trait `Foo` does not affect functions
 // that only use `Bar`, so long as they do not have methods in common.
 
-// compile-flags: -Z query-dep-graph
+// compile-flags: -Z query-dep-graph -C incremental=tmp/dep-graph-trait-impl-two-traits
 
 #![feature(rustc_attrs)]
 #![allow(warnings)]

src/test/ui/dep-graph/dep-graph-trait-impl.rs

@@ -1,7 +1,7 @@
 // Test that when a trait impl changes, fns whose body uses that trait
 // must also be recompiled.
 
-// compile-flags: -Z query-dep-graph
+// compile-flags: -Z query-dep-graph -C incremental=tmp/dep-graph-trait-impl
 
 #![feature(rustc_attrs)]
 #![allow(warnings)]

src/test/ui/dep-graph/dep-graph-type-alias.rs

@@ -1,6 +1,6 @@
 // Test that changing what a `type` points to does not go unnoticed.
 
-// compile-flags: -Z query-dep-graph
+// compile-flags: -Z query-dep-graph -C incremental=tmp/dep-graph-type-alias
 
 #![feature(rustc_attrs)]
 #![allow(dead_code)]

src/test/ui/dep-graph/dep-graph-variance-alias.rs

@@ -1,7 +1,7 @@
 // Test that changing what a `type` points to does not go unnoticed
 // by the variance analysis.
 
-// compile-flags: -Z query-dep-graph
+// compile-flags: -Z query-dep-graph -C incremental=tmp/dep-graph-variance-alias
 
 #![feature(rustc_attrs)]
 #![allow(dead_code)]