Update lit.cfg to support the clang-interpreter test from r207950

Performs behind-the-scenes RUN line substitution similarly to what's done with
clang-check and clang-format to ensure the executable is found.

llvm-svn: 207951

clang/test/CMakeLists.txt

@@ -29,6 +29,7 @@ list(APPEND CLANG_TEST_DEPS
   c-index-test diagtool arcmt-test c-arcmt-test
   clang-check clang-format
   clang-tblgen
+  clang-interpreter
   PrintFunctionNames
   SampleAnalyzerPlugin
   )

clang/test/lit.cfg

@@ -308,6 +308,7 @@ for pattern in [r"\bFileCheck\b",
                 r"\bc-index-test\b",
                 NoPreHyphenDot + r"\bclang-check\b" + NoPostHyphenDot,
                 NoPreHyphenDot + r"\bclang-format\b" + NoPostHyphenDot,
+                NoPreHyphenDot + r"\bclang-interpreter\b" + NoPostHyphenDot,
                 # FIXME: Some clang test uses opt?
                 NoPreHyphenDot + r"\bopt\b" + NoPostHyphenDot,
                 # Handle these specially as they are strings searched