[llvm] [libsycl] Add queue constructors with context. (PR #221763)

[Kseniya Tikhomirova via llvm-commits]

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@@ -55,12 +56,31 @@ class ProgramWrapper {
   /// \return the corresponding liboffload program handle.
   ol_program_handle_t getOLHandle() { return MProgram; }
 
+  /// Returns the liboffload kernel symbol for the specified kernel, looking it
+  /// up in this program on first use.
+  ///
+  /// Symbols belong to the program they were retrieved from: liboffload has no
+  /// olDestroySymbol, so they are released together with this program. Caching
+  /// them here rather than per device keeps a symbol from ever being handed out
+  /// for a program it does not belong to.
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KseniyaTikhomirova wrote:

yes, let's do it separately, thanks for reminding about that

https://github.com/llvm/llvm-project/pull/221763