Make symbols.test pass on Windows.

See commit message of r374746 for details.

Hopefully final bit of PR43592.

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@374747 91177308-0d34-0410-b5e6-96231b3b80d8

clangd/test/Inputs/symbols.test.yaml

diff --git a/clangd/test/Inputs/symbols.test.yaml b/clangd/test/Inputs/symbols.test.yaml
index 40068e3..6d457ad 100644
--- a/clangd/test/Inputs/symbols.test.yaml
+++ b/clangd/test/Inputs/symbols.test.yaml
@@ -7,7 +7,7 @@
   Kind:            Class
   Lang:            Cpp
 CanonicalDeclaration: 
-  FileURI:         'file:///vector.h'
+  FileURI:         'test:///vector.h'
   Start:           
     Line:            215
     Column:          10

clangd/test/symbols.test

diff --git a/clangd/test/symbols.test b/clangd/test/symbols.test
index a15d702..4e0c388 100644
--- a/clangd/test/symbols.test
+++ b/clangd/test/symbols.test
@@ -21,7 +21,7 @@
 # CHECK-NEXT:              "line": {{.*}}

 # CHECK-NEXT:            }

 # CHECK-NEXT:          },

-# CHECK-NEXT:          "uri": "file:///vector.h"

+# CHECK-NEXT:          "uri": "file:/{{.*}}//vector.h"

 # CHECK-NEXT:        },

 # CHECK-NEXT:        "name": "vector"

 # CHECK-NEXT:      }