[Flang] Allow compile *.f03, *.f08 file

Fix issue [#61260](https://github.com/llvm/llvm-project/issues/61260)

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D145845

clang/lib/Driver/Types.cpp

@@ -331,6 +331,10 @@ types::ID types::lookupTypeForExtension(llvm::StringRef Ext) {
       .Case("cui", TY_PP_CUDA)
       .Case("cxx", TY_CXX)
       .Case("CXX", TY_CXX)
+      .Case("F03", TY_Fortran)
+      .Case("f03", TY_PP_Fortran)
+      .Case("F08", TY_Fortran)
+      .Case("f08", TY_PP_Fortran)
       .Case("F90", TY_Fortran)
       .Case("f90", TY_PP_Fortran)
       .Case("F95", TY_Fortran)

flang/test/Driver/supported-suffices/f03-suffix.f03

@@ -0,0 +1,5 @@
+! RUN: %flang -### %s 2>&1 | FileCheck %s
+
+! CHECK: "{{.*}}flang-new" "-fc1" {{.*}} "-o" "{{.*}}.o"
+program f03
+end program f03

flang/test/Driver/supported-suffices/f08-suffix.f08

@@ -0,0 +1,5 @@
+! RUN: %flang -### %s 2>&1 | FileCheck %s
+
+! CHECK: "{{.*}}flang-new" "-fc1" {{.*}} "-o" "{{.*}}.o"
+program f08
+end program f08