feat: OpenTelemetry Tracing API and Exporting (#26710)

Initial import of OTEL code supporting tracing. Metrics soon to come.
Implements APIs for https://jsr.io/@deno/otel so that code using
OpenTelemetry.js just works tm.

There is still a lot of work to do with configuration and adding
built-in tracing to core APIs, which will come in followup PRs.

---------

Co-authored-by: Luca Casonato <hello@lcas.dev>

1 files changed, 11 insertions, 5 deletions

diff --git a/runtime/lib.rs b/runtime/lib.rs
index f0b1129ce..21b61e1c0 100644
--- a/runtime/lib.rs
+++ b/runtime/lib.rs
@@ -99,18 +99,24 @@ pub static UNSTABLE_GRANULAR_FLAGS: &[UnstableGranularFlag] = &[
     show_in_help: true,
     id: 7,
   },
+  UnstableGranularFlag {
+    name: "otel",
+    help_text: "Enable unstable OpenTelemetry features",
+    show_in_help: false,
+    id: 8,
+  },
   // TODO(bartlomieju): consider removing it
   UnstableGranularFlag {
     name: ops::process::UNSTABLE_FEATURE_NAME,
     help_text: "Enable unstable process APIs",
     show_in_help: false,
-    id: 8,
+    id: 9,
   },
   UnstableGranularFlag {
     name: "temporal",
     help_text: "Enable unstable Temporal API",
     show_in_help: true,
-    id: 9,
+    id: 10,
   },
   UnstableGranularFlag {
     name: "unsafe-proto",
@@ -118,19 +124,19 @@ pub static UNSTABLE_GRANULAR_FLAGS: &[UnstableGranularFlag] = &[
     show_in_help: true,
     // This number is used directly in the JS code. Search
     // for "unstableIds" to see where it's used.
-    id: 10,
+    id: 11,
   },
   UnstableGranularFlag {
     name: deno_webgpu::UNSTABLE_FEATURE_NAME,
     help_text: "Enable unstable `WebGPU` APIs",
     show_in_help: true,
-    id: 11,
+    id: 12,
   },
   UnstableGranularFlag {
     name: ops::worker_host::UNSTABLE_FEATURE_NAME,
     help_text: "Enable unstable Web Worker APIs",
     show_in_help: true,
-    id: 12,
+    id: 13,
   },
 ];