Fix typos in various IPA files
Corrects typos across multiple IPA-related source files.
This commit fixes typos in various files under the IPA (Interprocedural Analysis) subsystem. These corrections improve code readability and maintainability.
In Details
Fixes typos across multiple files in gcc/ipa/. IPA performs whole-program optimization, and the affected files span various IPA passes (cloning, function summaries, inlining, modref, parameter manipulation, etc). Outside of the IPA team, these files and passes aren't widely known.
For Context
Interprocedural Analysis (IPA) is a compiler optimization technique that analyzes the entire program to improve performance. It works by examining how different functions interact, allowing the compiler to make smarter decisions about inlining, function specialization, and memory usage. This commit fixes typos in the source code of IPA-related files for increased clarity.