[main] Source code updates from dotnet/runtime

src/runtime/.github/CODEOWNERS

@@ -98,12 +98,7 @@
 /eng/pipelines/**/*wasm* @akoeplinger
 
 # ILLink codeowners
-/src/tools/illink/ @marek-safar
-/src/tools/illink/src/analyzer/ @radekdoulik
-/src/tools/illink/src/ILLink.Tasks/ @sbomer
-/src/tools/illink/src/ILLink.RoslynAnalyzer/ @sbomer
-/src/tools/illink/src/linker/ @marek-safar @mrvoorhe
-/src/tools/illink/test/ @marek-safar @mrvoorhe
+/src/tools/illink/ @sbomer
 
 # Obsoletions / Custom Diagnostics
 

src/runtime/.github/policies/resourceManagement.yml

@@ -1750,7 +1750,6 @@ configuration:
           - LakshanF
           - sbomer
           - joperezr
-          - marek-safar
           replyTemplate: >-
             Tagging subscribers to 'linkable-framework': ${mentionees}
 
@@ -1768,7 +1767,6 @@ configuration:
             mentionees:
             - eerhardt
             - SamMonoRT
-            - marek-safar
             replyTemplate: >-
               Tagging subscribers to 'size-reduction': ${mentionees}
 

src/runtime/.github/prompts/add-new-jit-ee-api.prompt.md

@@ -1,6 +1,6 @@
 ---
-mode: 'agent'
-tools: ['fetch', 'codebase', 'runCommands', 'usages', 'search', 'think']
+agent: 'agent'
+tools: ['web/fetch', 'search/codebase', 'execute/getTerminalOutput', 'execute/runInTerminal', 'read/terminalLastCommand', 'read/terminalSelection', 'search/usages', 'search', 'edit/editFiles', 'think']
 description: 'Add a new API to the JIT-VM (aka JIT-EE) interface in the codebase.'
 ---
 

src/runtime/.github/prompts/docs.prompt.md

@@ -1,6 +1,6 @@
 ---
-mode: 'agent'
-tools: ['changes', 'codebase', 'editFiles', 'problems']
+agent: 'agent'
+tools: ['search/changes', 'search/codebase', 'edit/editFiles', 'read/problems']
 description: 'Ensure that C# types are documented with XML comments and follow best practices for documentation.'
 ---
 

src/runtime/eng/native/configurecompiler.cmake

@@ -20,6 +20,21 @@ include(CheckLinkerFlag)
 # "configureoptimization.cmake" must be included after CLR_CMAKE_HOST_UNIX has been set.
 include(${CMAKE_CURRENT_LIST_DIR}/configureoptimization.cmake)
 
+# Validate tryrun cache version matches current Emscripten version (browser-wasm only)
+if(CLR_CMAKE_TARGET_BROWSER AND DEFINED TRYRUN_BROWSER_EMSCRIPTEN_VERSION)
+    file(READ "${CMAKE_CURRENT_LIST_DIR}/../../src/mono/browser/emscripten-version.txt" CURRENT_EMSCRIPTEN_VERSION)
+    string(STRIP "${CURRENT_EMSCRIPTEN_VERSION}" CURRENT_EMSCRIPTEN_VERSION)
+
+    if(NOT TRYRUN_BROWSER_EMSCRIPTEN_VERSION STREQUAL CURRENT_EMSCRIPTEN_VERSION)
+        message(WARNING 
+            "Emscripten version mismatch detected!\n"
+            "  Current Emscripten: ${CURRENT_EMSCRIPTEN_VERSION}\n"
+            "  Cached features for: ${TRYRUN_BROWSER_EMSCRIPTEN_VERSION}\n"
+            "  The CMake feature cache (eng/native/tryrun.browser.cmake) may be outdated.\n"
+            "  Consider regenerating the cache - see instructions in eng/native/tryrun.browser.cmake")
+    endif()
+endif()
+
 #-----------------------------------------------------
 # Initialize Cmake compiler flags and other variables
 #-----------------------------------------------------

src/runtime/eng/native/gen-buildsys.sh

@@ -107,6 +107,9 @@ if [[ "$host_arch" == "wasm" ]]; then
         fi
         export EMSDK_QUIET=1 && source "$EMSDK_PATH"/emsdk_env.sh
         cmake_command="emcmake $cmake_command"
+        # Use WASM-specific tryrun cache to speed up CMake configure
+        # The -C flag must be early in the command line to be effective
+        cmake_extra_defines="-C $scriptroot/tryrun.browser.cmake $cmake_extra_defines"
     elif [[ "$target_os" == "wasi" ]]; then
         if [[ -z "$WASI_SDK_PATH" ]]; then
             if [[ -d "$reporoot"/artifacts/wasi-sdk ]]; then