Bug 140554

Summary: Remove the the captured variable hole from the stack, and make SymbolTable capable of telling you whether any given entry is a captured entry (i.e. activation index) or stack entry (i.e. VirtualRegister)
Product: WebKit Reporter: Filip Pizlo <fpizlo>
Component: JavaScriptCoreAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: ggaren, mark.lam, mhahnenb, msaboff, oliver, sam, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   

Description Filip Pizlo 2015-01-16 12:08:51 PST 
This implies fixing DFG::clobberize() to know that VirtualRegisters and captured variables aren't necessarily the same thing.
Comment 1 Radar WebKit Bug Importer 2015-01-16 12:09:28 PST 
<rdar://problem/19502098>