[rebase] lib/Frontend dependency fix

FrontendActions.cpp include various mlir/fir headers that themselves
includes auto generated header files from .td.

It is therefore important that FIR and MLIR headers are generated
before starting to build lib/Frontend (otherwise, builds on beefy
machines fail when not finding the auto generated headers).

A previous fix done in:
9979896
Did not add all dependencies and was not working anymore in out-of-tree
builds because LinalgOdsGen is actually no exported in install builds.

Author: jeanPerier

flang/lib/Frontend/CMakeLists.txt

@@ -12,6 +12,10 @@ add_flang_library(flangFrontend
 
   DEPENDS
   clangBasic
+  FIRBuilder
+  FIRDialect
+  FIRSupport
+  ${dialect_libs}
 
   LINK_LIBS
   FortranParser