Non-JVM benchmarks fail if multiple modes are specified in BenchmarkMode annotation

[fzhinkin]

BenchmarkMode annotation allows specifying multiple modes simultaneously [1], but only JVM benchmarks support it. For all other targets SuiteSourceGenerator fails as it expect at most one mode value [2]:

Execution failed for task ':benchmark:macosArm64BenchmarkGenerate'.
> There was a failure while executing work items
   > A failure occurred while executing kotlinx.benchmark.gradle.NativeSourceGeneratorWorker
      > List has more than one element.

...
Caused by: java.lang.IllegalArgumentException: List has more than one element.
        at kotlin.collections.CollectionsKt___CollectionsKt.single(_Collections.kt:610)
        at kotlinx.benchmark.gradle.SuiteSourceGenerator.generateBenchmark(SuiteSourceGenerator.kt:142)
        at kotlinx.benchmark.gradle.SuiteSourceGenerator.processPackage(SuiteSourceGenerator.kt:107)
        at kotlinx.benchmark.gradle.SuiteSourceGenerator.processPackage(SuiteSourceGenerator.kt:112)
        at kotlinx.benchmark.gradle.SuiteSourceGenerator.processPackage(SuiteSourceGenerator.kt:112)
        at kotlinx.benchmark.gradle.SuiteSourceGenerator.processPackage(SuiteSourceGenerator.kt:112)
        at kotlinx.benchmark.gradle.SuiteSourceGenerator.processPackage(SuiteSourceGenerator.kt:112)
        at kotlinx.benchmark.gradle.SuiteSourceGenerator.processPackage(SuiteSourceGenerator.kt:112)
        at kotlinx.benchmark.gradle.SuiteSourceGenerator.generate(SuiteSourceGenerator.kt:80)
        at kotlinx.benchmark.gradle.NativeSourceGeneratorWorker.execute(NativeSourceGeneratorTask.kt:78)
...

Multiple modes should be either supported across all targets, or the BenchmarkMode annotation should only accept a single argument in non-JVM source sets.

[1]

kotlinx-benchmark/runtime/commonMain/src/kotlinx/benchmark/CommonBenchmarkAnnotations.kt

Line 20 in 3f32f2d

expect annotation class BenchmarkMode(vararg val value: Mode)

[2] https://github.com/Kotlin/kotlinx-benchmark/blob/3f32f2d9d9732a2a01d231134c52e6554428b519/plugin/main/src/kotlinx/benchmark/gradle/SuiteSourceGenerator.kt#L142C19-L142C19