[1 of 3] Compiling GHC.Debugger.View.Class ( in-memory:GHC.Debugger.View.Class, in-memory:GHC.Debugger.View.gbc )[haskell-debugger-view-in-memory]
[2 of 3] Compiling Main             ( <TEMPORARY-DIRECTORY>/T159b.hs, <TEMPORARY-DIRECTORY>/.hdb-cache/<CACHE-ENTRY>/Main.gbc )[main]
(hdb) BreakFound {changed = True, breakId = [InternalBreakpointId Main 16], sourceSpan = SourceSpan {file = "<TEMPORARY-DIRECTORY>/T159b.hs", startLine = 12, endLine = 12, startCol = 3, endCol = 47}}
(hdb) Stopped at breakpoint
(hdb) [DbgStackFrame {name = "Main.foo", sourceSpan = SourceSpan {file = "<TEMPORARY-DIRECTORY>/T159b.hs", startLine = 12, endLine = 12, startCol = 3, endCol = 47}, breakId = Just InternalBreakpointId Main 16},DbgStackFrame {name = "Lovely annotation, called at <TEMPORARY-DIRECTORY>/T159b.hs:7:7 in main:Main", sourceSpan = SourceSpan {file = "", startLine = 0, endLine = 0, startCol = 0, endCol = 0}, breakId = Nothing},DbgStackFrame {name = "[1,2,3,4], called at <TEMPORARY-DIRECTORY>/T159b.hs:6:5 in main:Main", sourceSpan = SourceSpan {file = "", startLine = 0, endLine = 0, startCol = 0, endCol = 0}, breakId = Nothing},DbgStackFrame {name = "annotateCallStackIO, called at <TEMPORARY-DIRECTORY>/T159b.hs:5:3 in main:Main", sourceSpan = SourceSpan {file = "", startLine = 0, endLine = 0, startCol = 0, endCol = 0}, breakId = Nothing}]
(hdb) Exiting...