Change file naming convention to match the OMP version in the incluabor.

Author: erichkeane

clang/lib/CIR/CodeGen/CIRGenOpenACCDecl.cpp renamed to clang/lib/CIR/CodeGen/CIRGenDeclOpenACC.cpp

@@ -9,15 +9,15 @@ get_property(dialect_libs GLOBAL PROPERTY MLIR_DIALECT_LIBS)
 add_clang_library(clangCIR
   CIRGenerator.cpp
   CIRGenDecl.cpp
-  CIRGenOpenACCDecl.cpp
+  CIRGenDeclOpenACC.cpp
   CIRGenExpr.cpp
   CIRGenExprAggregate.cpp
   CIRGenExprConstant.cpp
   CIRGenExprScalar.cpp
   CIRGenFunction.cpp
   CIRGenModule.cpp
-  CIRGenOpenACCStmt.cpp
   CIRGenStmt.cpp
+  CIRGenStmtOpenACC.cpp
   CIRGenTypes.cpp
 
   DEPENDS