[pseudo] Rename Tests.cpp => Test.cpp

To be consistent with other files in clang unittest directory.

clang/unittests/Tooling/Syntax/Pseudo/CMakeLists.txt

@@ -3,7 +3,7 @@ set(LLVM_LINK_COMPONENTS
   )
 
 add_clang_unittest(ClangPseudoTests
-  GrammarTests.cpp
+  GrammarTest.cpp
 )
 
 clang_target_link_libraries(ClangPseudoTests

clang/unittests/Tooling/Syntax/Pseudo/GrammarTest.cpp

@@ -1,4 +1,4 @@
-//===--- GrammarTests.cpp - grammar tests  ----------------------*- C++ -*-===//
+//===--- GrammarTest.cpp - grammar tests  -----------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

llvm/utils/gn/secondary/clang/unittests/Tooling/Syntax/Pseudo/BUILD.gn

@@ -10,5 +10,5 @@ unittest("ClangPseudoTests") {
     "//llvm/lib/Support",
     "//llvm/lib/Testing/Support",
   ]
-  sources = [ "GrammarTests.cpp" ]
+  sources = [ "GrammarTest.cpp" ]
 }