hg: lambda/lambda/langtools: Improved support for lambda conversion.

[maurizio.cimadamore at oracle.com]

Changeset: 02b8de982628
Author:    mcimadamore
Date:      2010-06-21 13:43 +0100
URL:       http://hg.openjdk.java.net/lambda/lambda/langtools/rev/02b8de982628

Improved support for lambda conversion.

Now the prototype supports lambda conversion where the target type is an abstract class. This is (temporarily) done by generating a synthetic anonymous inner class implementing the SAM method. Also added some checks involving lambda conversion described in the strawman:

*) abstract class targeted by a lambda conversion must have default constructor
*) target method of lambda conversion cannot be generic

! src/share/classes/com/sun/tools/javac/code/Types.java
! src/share/classes/com/sun/tools/javac/comp/Lower.java
! src/share/classes/com/sun/tools/javac/resources/compiler.properties
+ test/tools/javac/lambda/BadConv01.java
+ test/tools/javac/lambda/BadConv01.out
+ test/tools/javac/lambda/BadConv02.java
+ test/tools/javac/lambda/BadConv02.out
+ test/tools/javac/lambda/LambdaConv07.java