Import source positions are inconsistent with JDT

[eric-milles]

Error message and find occurrence highlighting for an import statement like import foo.bar.Baz; include only "Baz" in the range. And sometimes the problem underlines bleed into the next line. Source positions should include the qualifier. Also, selection of "Object" in the source includes star imports as occurrences.

[eric-milles]

Static imports are highlighting the entire qualified type, which is consistent with the Java Editor. This change would bring type imports in line with static imports and the Java Editor's display of import problems and occurrences.