support wallclock, malloc, free events

[korniltsev]

Support new events from asprof

For free events, there are no stacktraces, so we do not create pprofs for them

PR Overview

This pull request adds support for new profiling events including wallclock samples, malloc events, and free events. The changes include:

• Adding new constants and corresponding handling for malloc events in pprof.
• Introducing new type IDs and class definitions for wall clock, malloc, and free events in the types generator.
• Extending the parser and its test cases to cover the new event types.

Reviewed Changes

File	Description
pprof/pprof.go	Added a new constant and case branch for handling malloc events.
gen/types.go	Introduced new type IDs and class definitions for wallclock, malloc, and free events.
pprof/parser_test.go	Included new test cases for wall clock and native memory events.
parser/parser.go	Extended parsing logic to support wallclock, malloc, and free events.
parser/types/def/types.go	Updated TypeMap with new type IDs for malloc and free events.
gen/main.go	Generated new type files for wallclock, malloc, and free events.

Copilot reviewed 16 out of 16 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (2)

pprof/pprof.go:17

• The free event sample type is not defined in the constants even though free events are parsed in other parts of the code. If free events are intended to be processed similarly to malloc events, consider adding a corresponding constant (e.g., sampleTypeFree) along with its case handling in the profileBuilderForSampleType function.

sampleTypeMalloc      = 8

pprof/parser.go:70

• While malloc events are handled in this switch, there is no case to process free events. Consider adding a case to handle free events similarly to malloc events if free events need to be included in the pprof output.

case parser.TypeMap.T_ACTIVE_SETTING: