Signed-off-by: Lars Grefer <eclipse@larsgrefer.de>

Reports any String.indexOf() expressions which can be replaced with a call to the String.contains() method available in Java 5 and newer.

Signed-off-by: Lars Grefer <eclipse@larsgrefer.de>

Reports for loops which iterate over collections or arrays, and can be replaced with an enhanced for loop (i.e. the foreach iteration syntax).

Signed-off-by: Lars Grefer <eclipse@larsgrefer.de>

+ Andy using it to capture 'cant find type' issues.

class and accompanying support).

- Enhanced structure model support.
- *Incremental* structure model support written and tested (currently switched off, see incModelTests.xml)
- -showWeaveInfo compiler option
- existence of a 'runtimetest' surfaced through relationships
- UI can determine if errors/warnings came from DEOWs.
- Code to enable type mungers to remember source locations written (currently switched off)

 	-X should output available -X options

 	Context information in declare warning/error messages

ensure messages are associated with source wherever possible

removed unused imports, local variables, and private methods
(still there, just commented out).

 	out of memory error when compiling

default mode (inherited behaviour from JDT).

   XLint warning for call PCD's using subtype of defining type 

also added extraSourceLocations to IMessage+ for
message with multiple source lines

- handling request  for fresh rebuild during incremental

- new API to run Runnable on command completion
required to support resource-copying by ant task
during incremental compilation

This adds an optional "context" String to IMessage.
The IMessage creator should create a context String (or use an implementation that lazily creates one).
The IMessage client can render their messages without context embedded in the message field.

Emitting source context from the weaver will be harder.
Using file and start/end line will probably work, since tool clients can map to any available source file paths.
(BcelSourceContext and BcelShadow can be updated with end from range.)