Add test for showing remapped path in diagnostics

rust-lang · Aug 27, 2021 · 8436fe1 · 8436fe1
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diff --git a/src/test/ui/remap-path-prefix.rs b/src/test/ui/remap-path-prefix.rs
@@ -0,0 +1,5 @@
+// compile-flags: --remap-path-prefix={{src-base}}=remapped
+
+fn main() {
+    ferris //~ ERROR cannot find value `ferris` in this scope
+}
diff --git a/src/test/ui/remap-path-prefix.stderr b/src/test/ui/remap-path-prefix.stderr
@@ -0,0 +1,9 @@
+error[E0425]: cannot find value `ferris` in this scope
+  --> remapped/remap-path-prefix.rs:4:5
+   |
+LL |     ferris
+   |     ^^^^^^ not found in this scope
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0425`.