8074100: Turn Type.Mapping into a true visitor Summary: replace Type.Mapping with a true visitor in Types Reviewed-by: jlahoda, vromero

8074381: java.lang.AssertionError during compiling Summary: Add extra functional interface check to prevent crash during code generation Reviewed-by: vromero

8074148: Attr.visitBinary flags error at wrong position Reviewed-by: vromero

8071847: java.lang.NullPointerException at com.sun.tools.javac.code.Types.elemtype(Types.java:1870) Summary: Class file reader should recover from malformed class files that contain methods incorrectly flagged as variable arity methods. Reviewed-by: jlahoda