Merge #2722

2722: Fix ra_cargo_watch test on windows. r=matklad a=kiljacken

Due to difference in path parsing on platforms, the current input to the snapshot tests in ra_cargo_watch cause a panic when running on Windows. This PR disables the tests when running on Windows until a better solution is found.

If somebody running on Windows could test this that would be great, as I'm working in the blind here :) 

Fixes #2720 (probably).

Co-authored-by: Emil Lauridsen <mine809@gmail.com>

Author: bors[bot]

crates/ra_cargo_watch/src/conv/test.rs

@@ -7,6 +7,7 @@ fn parse_diagnostic(val: &str) -> cargo_metadata::diagnostic::Diagnostic {
 }
 
 #[test]
+#[cfg(not(windows))]
 fn snap_rustc_incompatible_type_for_trait() {
     let diag = parse_diagnostic(
         r##"{
@@ -60,6 +61,7 @@ fn snap_rustc_incompatible_type_for_trait() {
 }
 
 #[test]
+#[cfg(not(windows))]
 fn snap_rustc_unused_variable() {
     let diag = parse_diagnostic(
         r##"{
@@ -142,6 +144,7 @@ fn snap_rustc_unused_variable() {
 }
 
 #[test]
+#[cfg(not(windows))]
 fn snap_rustc_wrong_number_of_parameters() {
     let diag = parse_diagnostic(
         r##"{
@@ -266,6 +269,7 @@ fn snap_rustc_wrong_number_of_parameters() {
 }
 
 #[test]
+#[cfg(not(windows))]
 fn snap_clippy_pass_by_ref() {
     let diag = parse_diagnostic(
         r##"{
@@ -386,6 +390,7 @@ fn snap_clippy_pass_by_ref() {
 }
 
 #[test]
+#[cfg(not(windows))]
 fn snap_rustc_mismatched_type() {
     let diag = parse_diagnostic(
         r##"{
@@ -429,6 +434,7 @@ fn snap_rustc_mismatched_type() {
 }
 
 #[test]
+#[cfg(not(windows))]
 fn snap_handles_macro_location() {
     let diag = parse_diagnostic(
         r##"{
@@ -700,6 +706,7 @@ fn snap_handles_macro_location() {
 }
 
 #[test]
+#[cfg(not(windows))]
 fn snap_macro_compiler_error() {
     let diag = parse_diagnostic(
         r##"{