Vue template compiler warnings are handled as errors

[susnux]

When building for development all template compiler warnings are treated as errors instead of warning and will break the build.

Examples for such warnings are:

text \"Some comment\" between v-if and v-else(-if) will be ignored.

When having a template like this:

<component v-if="foo" />
<!-- Some comment -->
<component v-else />

[susnux]

For example it could be fixed by changing

vite-plugin-vue2/src/template.ts

Line 65 in ad7d61e

pluginContext.error(

to something like:

(process.env.NODE_ENV === 'production' ? pluginContext.error : pluginContext.warn)(

As I think this warning is converted to an error somewhere more deep inside the compiler-sfc.