8078561: Error message should be generated once when -source 6 is specified
Summary: Code to avoid duplicated errors about features not supported in the current source level moved to Log
Reviewed-by: jjg
ExtraneousEquals.java:10:23: compiler.err.illegal.start.of.expr
ExtraneousEquals.java:10:24: compiler.err.illegal.start.of.expr
ExtraneousEquals.java:10:25: compiler.err.expected: ';'
ExtraneousEquals.java:10:28: compiler.err.not.stmt
ExtraneousEquals.java:10:29: compiler.err.expected: ';'
5 errors