JsInline: removed old inline logic
JsInline: pass call expression to InlinedCallExpressionTranslator
JsInline: added class CloningVisitor
JsInline: added class RenamingVisitor
JsInline: added class NameCollector
JsInline: added class ReturnCounter
JsInline: added class ReplaceReturnVisitor
JsInline: added class FunctionCollector
JsInline: added class InlineableResult
JsInline: added class FunctionInlineMutator
JsInline: save static ref to JsFunction in JsName
JsInline: made break labels optional
JsInline: JsBlock must be modifieable

Reason: it is ok to insert in a block after AST was created during translation.
For example, inliner can insert inlined body in such block.
Thus immutable SingletonList isn't appropriate.
JsInline: JsInliner recursively processes AST
JsInline: save block contexts to stack

Reason: need to be able to insert inlined body
before current statement (that might be
distant parent of node currently being
processed)
JsInline: save inline status during translation
JsInline: inline lambda functions
JsInline: run JsInliner after AST is built