[CMake] Cope with circular dependencies by tweaking link order.

Linux (rather, gold) is stricter than macOS (ld64) about this, so
until we can eliminate the rest of the dependencies this is the
best workaround we have.

(cherry picked from commit 9e2577d)

Author: jrose-apple

tools/sil-passpipeline-dumper/CMakeLists.txt

@@ -6,6 +6,9 @@ add_swift_host_tool(sil-passpipeline-dumper
     swiftSILOptimizer
     swiftSerialization
     swiftClangImporter
+    # FIXME: Circular dependencies require re-listing these libraries.
+    swiftSema
+    swiftAST
   LLVM_COMPONENT_DEPENDS
     DebugInfoCodeView
   SWIFT_COMPONENT tools

unittests/Parse/CMakeLists.txt

@@ -6,9 +6,10 @@ add_swift_unittest(SwiftParseTests
 
 target_link_libraries(SwiftParseTests
     swiftSIL
-    swiftSema
     swiftClangImporter
     swiftParse
     swiftAST
+    # FIXME: Sema must go last because of circular dependencies with AST.
+    swiftSema
 )