Assorted library fixes and stubs for the Java backend.

Branches: main

java/runtime/ForeignEnumFunctorDesc.java:
java/runtime/TypeCtorInfo_Struct.java:
java/runtime/TypeFunctors.java:
library/backjump.m:
library/builtin.m:
library/io.m:
library/math.m:
library/mutvar.m:
library/par_builtin.m:
library/private_builtin.m:
library/region_builtin.m:
library/rtti_implementation.m:
library/store.m:
library/string.m:
library/thread.semaphore.m:
library/time.m:
library/type_desc.m:
        Assorted library fixes and stubs for the Java backend.

java/runtime/ForeignEnumFunctorDesc.java

@@ -15,6 +15,6 @@ public class ForeignEnumFunctorDesc {
 	public ForeignEnumFunctorDesc(String name, int ordinal, int value) {
 		foreign_enum_functor_name = name;
 		foreign_enum_functor_ordinal = ordinal;
-		foreign_enum_functor_value = value
+		foreign_enum_functor_value = value;
 	}
 }