Version 1.17.0-dev.6.2

Merge '551eee30e5581cf81d3f1ccef9653ad28a27c9bd' into dev
Turn off vm precompilation in dev
diff --git a/DEPS b/DEPS
index 138d463..1b74da6 100644
--- a/DEPS
+++ b/DEPS
@@ -62,7 +62,7 @@
   "intl_rev": "@a8b480b9c436f6c0ec16730804c914bdb4e30d53",
   "jinja2_rev": "@2222b31554f03e62600cd7e383376a7c187967a1",
   "json_rpc_2_tag": "@2.0.0",
-  "linter_rev": "@8e1873ba689fbb0064cbd27c238c898106938dcd",
+  "linter_rev": "@ccd8dbf7562b7645dc8c54a578b78b38970c71d6",
   "logging_rev": "@85d83e002670545e9039ad3985f0018ab640e597",
   "markdown_rev": "@4aaadf3d940bb172e1f6285af4d2b1710d309982",
   "matcher_tag": "@0.12.0",
diff --git a/runtime/vm/flag_list.h b/runtime/vm/flag_list.h
index 5818624..7b5f135 100644
--- a/runtime/vm/flag_list.h
+++ b/runtime/vm/flag_list.h
@@ -37,7 +37,7 @@
 #define FLAG_LIST(P, R, D, C)                                                  \
 P(always_megamorphic_calls, bool, false,                                       \
   "Instance call always as megamorphic.")                                      \
-P(background_compilation, bool, USING_MULTICORE,                               \
+P(background_compilation, bool, false,                                         \
   "Run optimizing compilation in background")                                  \
 R(background_compilation_stop_alot, false, bool, false,                        \
   "Stress test system: stop background compiler often.")                       \
diff --git a/tools/VERSION b/tools/VERSION
index 7055357..f0eb17c 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 17
 PATCH 0
 PRERELEASE 6
-PRERELEASE_PATCH 1
+PRERELEASE_PATCH 2