+ change mnemonic of `Allow parallel run` to U
+ replace removing mnemonics from getStartActionText to just calling getActionText

The motivation is described in the ticket.
Removing mnemonic seems to be safe here as:

1) the mnemonic was assigned to a default button;
2) the mnemonic might be different in the same dialog depending on executor, so habit cannot be strong here.

- minimal size for applicable contexts list
- resizable textarea and applicable contexts list
- fill entire dialog
- proper comment label

InlineMethodProcessor: cover weird case with enum constant, lambda and explicit return with another call

IDEA-CR-44706 make clear what's going on during `app initialization preparation` phase (third part, not fully covered)

fix javadoc references in com.intellij.ui.tabs.JBTabsPresentation#setPaintBorder. Implement new Editor Tabs UI (#IDEA-205489)

PR #1077

Move registration of extensions and services which are present in PlatformLangPlugin.xml (and therefore included in all small IDEs) to the beginning of JavaIdePlugin.xml. Those which have special implementation in IntelliJ IDEA are now explicitly override the default implementation.

This is a preliminary step to reuse PlatformLangPlugin.xml in IntelliJ IDEA as well to make all IDEs consistent and avoid duplication. This is also needed to properly extract Java support to a separate plugin (IDEA-195719).

IDEA-CR-44706 make clear what's going on during `app initialization preparation` phase (second part, not fully covered)

visualizer - firefox bug workaround

IDEA-207608 [jbr11 windows installers] It is better to remove checkboxes related to win32 system from Setup dialog

IDEA-CR-44378

Not used since 08f2e356

 provider given by extensions

1. fixed CCE when rhs contains char
2. updated fix to handle parenthesized rhs
3. updated fix to handle negated number as a literal and not as an expression