stepToReturn command doesn't step to non-local returns (in block)

[adri09070]

In SindarinDebugger, the stepToReturn command doesn't step to returns in blocks, as its implementation uses stepOver:

stepToReturn

	[ 
	self context instructionStream willReturn or: [ self hasSignalledUnhandledException ] ] 
		whileFalse: [ self debugSession stepOver ]

Thus, in SindarinDebuggerTest, the testStepToNonLocalreturn is red:

testStepToNonLocalReturn
	| dbg |
	self skipOnPharoCITestingEnvironment.	
	dbg := SindarinDebugger debug: [ self helperMethodNonLocalReturn ].
	dbg stepToMethodEntry.
	dbg stepToReturn.
	
	self assert: dbg node isReturn.
	self assert: dbg topStack equals: 42

It could be fixed with a version doing stepOver (necessary to stop on exception signals, while skipping halts) and doing stepInto only when we are on a message node that has a block node that is defined in the same lexical context as the context in which we want to step to return.