[Flang] Fix BUILD_SHARED_LIBS build (llvm#155422)

In contrast to linking a static library, when linking a shared library
all referenced symbols must be available in either the objects files,
static libraries, or shared libraries passed to the linker command line
and cannot be deferred to when building the executable.

Fixes llvm#150027

Same fix as included in llvm#152223, but with only the changes necessary to
fix llvm#150027 (which is unrelated to GCC 15)

Author: Meinersbur

flang/lib/Optimizer/Builder/CMakeLists.txt

@@ -50,6 +50,7 @@ add_flang_library(FIRBuilder
   FIRDialectSupport
   FIRSupport
   FortranEvaluate
+  FortranSupport
   HLFIRDialect
 
   MLIR_DEPS

flang/lib/Optimizer/HLFIR/Transforms/CMakeLists.txt

@@ -27,6 +27,8 @@ add_flang_library(HLFIRTransforms
   FIRSupport
   FIRTransforms
   FlangOpenMPTransforms
+  FortranEvaluate
+  FortranSupport
   HLFIRDialect
 
   LINK_COMPONENTS